STAINLESS STEEL TUBING

Table for Determing Theoretical Bursting Pressures

OD, In.
B.W.G.
In.
24
0.022
22
0.028
20
0.035
18
0.049
16
0.065
14
0.083
13
0.095
12
0.109
11
0.120
10
0.134
9
0.148
8
0.165
1/4
 
1750
2250
2800
3900
5200
 
 
 
 
 
 
 
5/16
 
1400
1800
2250
3150
4150
 
 
 
 
 
 
 
3/8
 
1200
1500
1850
2600
3450
 
 
 
 
 
 
 
1/2
 
 900
1100
1400
1950
2600
3300
3800
 
 
 
 
 
5/8
 
 700
 900
1100
1550
2100
2650
3050
 
 
 
 
 
3/4
 
 600
 750
 950
1300
1750
2200
2550
2900
 
 
 
 
7/8
 
 500
 650
 800
1100
1500
1900
2150
2500
 
 
 
 
1
 
 450
 550
 700
1000
1300
1650
1900
2200
2400
 
 
 
1-1/8
 
 
 500
 600
 850
1150
1500
1700
1950
2150
 
 
 
1-1/4
 
 
 450
 550
 800
1050
1350
1500
1750
1900
2150
 
 
1-1/2
 
 
 350
 450
 650
 850
1100
1250
1450
1600
1800
 
 
1-3/4
 
 
 300
 400
 500
 750
 950
1100
1250
1350
1550
 
 
2
 
 
 300
 350
 500
 650
 850
 950
1100
1200
1350
1500
 
2-1/4
 
 
 
 300
 450
 600
 750
 850
 950
1050
1200
1300
 
2-1/2
 
 
 
 300
 400
 500
 650
 750
 850
 950
1050
1200
1300
2-3/4
 
 
 
 250
 350
 450
 600
 700
 800
 850
1000
1100
1200
3
 
 
 
 250
 350
 450
 550
 650
 750
 800
 900
1000
1100
3-1/4
 
 
 
 
 
 450
 500
 600
 650
 750
 800
 900
1000
3-1/2
 
 
 
 
 
 350
 450
 550
 600
 700
 750
 850
 950
3-3/4
 
 
 
 
 
 350
 450
 500
 600
 650
 700
 800
 900
4
 
 
 
 
 
 300
 400
 500
 550
 600
 650
 750
 800
4-1/4
 
 
 
 
 
 300
 400
 450
 500
 550
 650
 700
 800
4-1/2
 
 
 
 
 
 300
 350
 400
 500
 550
 600
 650
 750
4-3/4
 
 
 
 
 
 250
 350
 400
 450
 500
 550
 600
 700
5
 
 
 
 
 
 250
 350
 400
 450
 500
 550
 600
 650
NOTE: Above pressures are calculated to nearest 50 psi.

Based on Barlow’s formula with a unit fiber stress of 10,000 psi

Example:

For Type 304 Stainless Tubing with an ultimate strength of 85,000 psi.
Multiply figures on table by 8.5.

Based on formula P=2f(t/D)

(tensile)
f – Fiber stress in pounds per square inch
D – Outside diameter in inches
P – Pressure in pounds per square inch
t – Thickness of wall in inches

NOTE: To compute safe working pressures, above burst pressures should be divided by your desired safety factor